There is no need for me to say that it has been incredibly hot and humid here in northern Virginia. It’s the same pretty much everywhere in the U.S. right now. So I’m saying it for my non-U.S. readers so that they have the context for the post. Hot. And humid. For some reason, news…
Okay, someone really needs to reprint Isaac Asimov’s excellent essay, “The Bridge of the Gods” which is all about light and rainbows. I’ve been seeing stuff all over about remarkable “double-rainbows” as if this is a new or even a rare phenomenon, but as Asimov explains in his essay, there is a very good explanation…